westec catalog

CONCRETE ACCESSORIESSika® Westec® BARRIER TECHNOLOGIESWATERSTOPS FOR INDUSTRIAL APPLICATIONS

2Sika® Westec® BARRIER TECHNOLOGIESConcrete Accessories

CHEMICAL EXPOSURE Temperature TPE-R PE StainlessSteel 316 PVC

Rating Key: A = Excellent B = Good C = Conditional X = Do not useAmmonia, Anhydrous 23°C (73.4°F) A B A A*Antifreeze 100°C (212°F) A B A A(50% Ethylene Glycol/50% Water) 125°C (257°F) B AASTM Oil #2 100°C (212°F) B A XBenzene 23°C (73.4°F) B B A X

Carbon Tetrachloride 23°C (73.4°F) X X B X

Chlorine (Wet/Dry) 23°C (73.4°F) A/A C/C A/X X/XCreosote 23°C (73.4°F) A A XCyclohexane 23°C (73.4°F) X X A XDiesel Fuel 23°C (73.4°F) B B A XEthanol 23°C (73.4°F) A A A XHydraulic Fluid 23°C (73.4°F) A B A XHydrogen Peroxide 23°C (73.4°F) A B B AIsopropyl Alcohols 23°C (73.4°F) A A A AJet Fuel - JP8 23°C (73.4°F) B B A CKerosene 23°C (73.4°F) B C A CMethyl Ethyl Ketone 23°C (73.4°F) B B A XNitric Acid- 70% 23°C (73.4°F) B X A XOil, Mineral 23°C (73.4°F) A B A B/CSodium Hydroxide 80% Solution 23°C (73.4°F) A C X ASodium Hypochlorite 23°C (73.4°F) A B B AStyrene 23°C (73.4°F) B B A XSulfuric Acid 98% 23°C (73.4°F) B C X XTetrahydrofuran 23°C (73.4°F) B X A XToluene 23°C (73.4°F) B B A XTrichloroethylene 23°C (73.4°F) X X A XDI Water pH 11 23°C (73.4°F) A B A AXylene 23°C (73.4°F) B B A X

Sika technical engineers are available for design review, chemical testing data, material takeoff and shop drawing assistance.

Industrial applications often have harsh chemical environments in which a traditional flexible PVC waterstop may not be suitable. Sika’s Westec® Barrier Technologies specialize in waterstop applications for these unique conditions with a wide range of both traditional and specialty profiles specifically designed for industrial applications.

CHEMICAL RESISTANCE: GENERAL GUIDELINESChemical resistance recommendations are based on short term, secondary containment applications. Typical testing is performed according to ASTM D-471 “Standard Test Method for Rubber Property-Effect of Liquids” with 166-hour (7 day) immersion. Performance data has been collected from a variety of sources including industry reference data, third-party and in-house testing. Consult a Sika Technical Sales Representative for application specific chemical data or further testing.

APPLICATION AREAS• Ethanol / Biodiesel Plants• Petrochemical Manufacturing• Refineries• Pulp and Paper Mills• Land, Air and Seaports• Fuel Storage / Tank Farms• Pipelines• Pharmaceutical Plants

QUALITY PRODUCTS FORSECONDARY CONTAINMENT & OPTIMUM PERFORMANCE

SUPERIOR SERVICE

3Sika® Westec® BARRIER TECHNOLOGIES

Concrete Accessories

Westec® PE 050 and 631 waterstop profiles are the first to receive

the European Technical Approval for watersealing bands and have been approved for CE marking in the European Union, ETA-04/0044.

MATERIAL CHOICES FOR OPTIMUM PERFORMANCE

SPLICING AND FABRICATIONSSika® Greenstreak® PVC welding equipment and techniques can be used for Westec® TPE-R and PE waterstops, requiring only a higher temperature set at 210°C (410°F). Sika recommends factory-fabricated joints at all intersections and direction changes. They offer a quick and economical alternative to cutting and splicing these critical junctions in the field. Contact a Sika Technical Sales Representative to arrange for a material takeoff and custom shop drawings. Fabrications are available for TPE-R, PE and SS.

Envirostop® TPE-RWestec® Envirostop® TPE-R waterstop is certified to

NSF/ANSI Standard 61 for drinking water applications. The standard establishes minimum health effects requirements for the chemical contaminants and impurities that may be indirectly imparted to drinking water. Although more commonly known for its use in chemical containment applications, TPE-R waterstop is now widely used for ozone contact structures in the water treatment industry. Envirostop® TPE-R waterstop can be specified for any drinking water containment structure where this certification is required for joint sealing materials.

SS (STAINLESS STEEL)Stainless steel is for high temperature environments that exceed 121°C (250°F) or the most severe chemical applications. Sika offers 316 low carbon stainless steel waterstops. However, many applications that have traditionally used SS waterstop can be served with TPE-R, including ozone contact structures.

GROMMETSTPE-R and PE 6” and 9” waterstops are pre-punched in the outermost rib with brass grommets providing convenient points on 12” centers to wire the waterstop to reinforcement. Properly securing the waterstop is critical to ensure good consolidation around the ribs and a liquid-tight seal.

PE POLYETHYLENEPolyethylene (VLDPE) is more plastic-like, having increased elastic modulus and hardness than TPE-R. PE also has greater resistance in some applications, and is particularly effective for hydrocarbons such as Benzene, Toluene and Xylene. After exposure (1-4 weeks) to such and subsequent drying, PE waterstop was found to return nearly to its original physical properties.

Envirostop® TPE-RThermoplastic Elastomeric Rubber is a fully vulcanized blend of EPDM and Polypropylene, also called a Thermoplastic Vulcanizate or TPV. This gives the waterstop the flexibility and sealing properties of a rubber seal, but allows for heat welding and processing like a plastic. In addition to the favorable physical properties, TPE-R also offers an excellent resistance to a wide range of chemicals. ASTM tests (D-471) show good resistance to oils, fuels, acids, bases and numerous solvents.

RIBBED CENTERBULB RETROFIT EB CAP618 629 637

619 630 638

620 686 634

RIBBED TEAR WEB697 639

607

608 694EP CAP RETROFIT

687

BASE SEAL691 688555


PROFILES

Envirostop® TPE-R PROFILES: STANDARD, RETROFIT AND EB CAP

039 031EB CAP RETROFIT

087

050 041 088

040EP CAP

625 631

498 499 496

493 494 495



PE PROFILES: STANDARD, RETROFIT AND EB CAP

SS PROFILES (STAINLESS STEEL): STANDARD AND RETROFIT


All Retrofit systems include stainless steel batten bars and tapcons. Westec® 151 Novolac Gel Epoxy creates a fluid tight and chemical resistant seal between the waterstop and existing concrete.

PATENTED EXPANSION BOARD CAP SEAL SYSTEM

Patent # for EB Cap is 5,378,386

The EB Cap seal system is a complete concrete joint system designed and patented by Westec®. Easy to install, the EB Cap integrates the waterstop, forming system, expansion board, joint seal and load transfer units into a single structure. Just stake down the board, set your screed elevation and that’s it. No stripping forms, no messy sealants, no problems!

INSTALLATION BENEFITS: ́ No split formwork ́ Fewer installation steps ́ No poured-in-place sealant required ́ No remobilization for saw cutting or sealant ́ Convenient strip pouring possible with Speed Loads ́ Lower labor and installation costs ́ No joint finishing required

Please consult a Sika Technical Sales Representative for your specific project needs.

POLYBOARDWestec® ¾” HDPE Polyboard is available for 6” and 8” paving applications. The polyboard is designed to work with the EB Cap and EB Cap retrofit profiles and serves as both expansion material and a forming system.

SPEED LOADSpeed Load sleeves are an excellent addition to the Expansion Board cap seal and Polyboard. Speed Load sleeves align the steel load transfer dowels and are designed specifically for leave-in-place forming systems like the EB Cap System.

CONSTRUCTION DETAILS FOR SPECIAL EB CAP DESIGNS



PROPERTY TEST METHOD TPE-R PE *SS (STAINLESS STEEL)Tensile Strength ASTM D 638 2000 psi 2000 psi 75,000 psiElongation ASTM D 638 450% 800% 40%100% Modulus ASTM D 638 1000 psi 4200 psiBrittle Temperature ASTM D 746 -56°C (-70°F)Hardness ASTM D 2240 85 Shore A 40 Shore D 95 max. Rockwell BYield Strength 25,000 psi

*SS Properties taken from ASTM A240, Table 2

PHYSICAL PROPERTIES OF FINISHED WATERSTOP

SELECTING THE RIGHT PROFILE

TPE-R and PE waterstops are available in a variety of sizes and profiles to meet the needs of various structures and applications.

RIBBED WITH CENTERBULB is a very versatile waterstop and a standard for the concrete industry. The centerbulb of the waterstop accommodates vertical and horizontal movement equal to the inside diameter of the centerbulb. This waterstop can be used in control joints and expansion joints, vertical and horizontal applications. TPE-R and PE profiles are available.

RIBBED WITH TEAR WEB is designed for larger joint movements. The thin web in the U-shaped centerbulb will tear during joint movement and allow for additional expansion or differential settlements. Some fabrications are limited. TPE-R and PE profiles are available. RETROFIT - Modern chemical plants and

manufacturing facilities are constantly expanding, modifying existing areas for new technologies and products. Structural changes to the concrete areas create the potential for leaks between the new and existing concrete. Traditionally, adding a waterstop to these joints required saw cutting a groove several inches into the existing concrete and grouting in a waterstop. This method is time-consuming, labor-intensive and often requires cutting through the top layer of rebar in the existing concrete. Westec® offers multiple profiles for a variety of situations and applications. TPE-R, PE and SS Retrofit profiles are available.

EB CAP - The patented Expansion Board Cap Seal system was designed to serve as both a waterstop and joint sealant. This unique design allows for one-step placement of your joint sealant and waterstop. No stripping, sawcutting or sealing is required. The result is an easy-to-install, maintenance-free joint. TPER and PE profiles are available.

BASE SEAL is designed for slab on grade joints or backfilled walls and eliminates difficult split forming details. This profile is difficult to join to other waterstops so may not be suitable for containment areas with standard waterstops in other joints. This profile is available only as TPE-R.

All sales of Sika products are subject to Sika’s current Terms and Conditions of Sale available at usa.sika.com or by calling 800-325-9504. Prior to each use of any Sika product, the user must always read and follow the warnings and instructions on the product’s most current Product Data Sheet, product label and Safety Data Sheet, which are available at usa.sika.com or by calling Technical Services at 800-325-9504. Nothing contained in any Sika materials relieves the user of the obligation to read and follow the warnings and instructions for each Sika product as set forth in the current Product Data Sheet, product label and Safety Data Sheet prior to product use.The sale of all Sika products are subject to the following Limited Warranty:LIMITED MATERIAL WARRANTYSIKA warrants this product for one year from date of installation to be free from manufacturing defects and to meet the technical properties on the current Product Data Sheet if used as directed within shelf life. User determines suitability of product for intended use and assumes all risks. Buyer’s sole remedy shall be limited to the purchase price or replacement of product exclusive of labor or cost of labor. NO OTHER WARRANTIES EXPRESS OR IMPLIED SHALL APPLY INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. SIKA SHALL NOT BE LIABLE UNDER ANY LEGAL THEORY FOR SPECIAL OR CONSEQUENTIAL DAMAGES. SIKA SHALL NOT BE RESPONSIBLE FOR THE USE OF THIS PRODUCT IN A MANNER TO INFRINGE ON ANY PATENT OR ANY OTHER INTELLECTUAL PROPERTY RIGHTS HELD BY OTHERS.

Our most current General Sales Conditions shall apply. Please consult the Product Data Sheets prior to any use and processing.

Sika Corporation201 Polito AvenueLyndhurst, NJ 07071Phone: 201-933-8800Fax: 201-933-6225

Contact Sika:Phone: 1-800-325-9504 Website: usa.sika.com

Sika Canada Inc.601 Delmar AvenuePointe ClaireQuebec H9R 4A9Phone: 514-697-2610Fax: 514-694-2792

SIKA FULL RANGE SOLUTIONSFOR CONSTRUCTION:

WATERPROOFING CONCRETE REFURBISHMENT

SEALING AND BONDING FLOORING ROOFING

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Sika CorporationSika Greenstreak Office3400 Tree Court Industrial Blvd.St. Louis, MO 63122Phone: 800-325-9504Fax: 636-225-2049

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